He felt his heart rapidly thump against his ribcage as his best friend kneeled before him with a wide grin as she held a black box in her hand out towards him. "Killua, will you be my best friend forever?" She asked with innocent sparkling eyes. Crack. Shatter. His heart stopped beating. His breath caught in his throat. "Are, are you friend-zoning me?!" He exclaimed in utter disbelief.